Cheap flights from Ottawa to London Heathrow Airport from C$ 336
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LHR
11 Feb — 18 Feb1
Round-trip
1 adult
Economy
The best prices from Ottawa to London Heathrow are usually found in January or February, booked 54 days in advance, depart on a Friday or Tuesday and return on a Monday
Cheap flight deals from Ottawa to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 6 February 2025.
Explore the most affordable flight options available from Ottawa to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 February 2025.
Mon 24/25:20 p.m.YOW - LHR
1 stop9h 40mAir France
Wed 5/37:35 p.m.LHR - YOW
1 stop24h 35mAir France
Deal found 5/2C$ 854
Mon 24/25:20 p.m.YOW - LHR
2 stops12h 25mMultiple Airlines
Wed 5/311:30 a.m.LHR - YOW
1 stop32h 40mMultiple Airlines
Deal found 5/2C$ 884
Fri 21/27:05 p.m.YOW - LHR
1 stop11h 45mAir Canada
Sat 22/23:00 p.m.LHR - YOW
1 stop23h 42mAir Canada
Deal found 6/2C$ 967
Tue 25/210:30 a.m.YOW - LHR
2 stops16h 55mUnited Airlines
Wed 5/34:00 p.m.LHR - YOW
2 stops23h 28mUnited Airlines
Deal found 5/2C$ 987
Thu 24/76:55 p.m.YOW - LHR
Nonstop6h 35mLufthansa
Mon 18/82:05 p.m.LHR - YOW
Nonstop7h 20mLufthansa
Deal found 6/2C$ 1,013
Sat 15/36:20 p.m.YOW - LHR
2 stops13h 45mKLM
Mon 31/36:30 a.m.LHR - YOW
2 stops13h 35mKLM
Deal found 6/2C$ 1,014
Sun 23/25:45 p.m.YOW - LHR
1 stop14h 05mWestJet
Wed 5/32:50 p.m.LHR - YOW
1 stop14h 54mWestJet
Deal found 5/2C$ 1,094
Sun 4/57:55 p.m.YOW - LHR
1 stop10h 55mAustrian Airlines
Fri 16/57:30 p.m.LHR - YOW
2 stops26h 34mAustrian Airlines
Deal found 6/2C$ 1,150
Thu 20/36:10 p.m.YOW - LHR
2 stops19h 40mSWISS
Wed 26/38:55 a.m.LHR - YOW
2 stops16h 42mSWISS
Deal found 6/2C$ 1,167
Sun 6/45:55 a.m.YOW - LHR
2 stops22h 00mDelta
Sat 12/48:10 p.m.LHR - YOW
2 stops32h 59mDelta
Deal found 6/2C$ 1,217
Best flights from Ottawa to Heathrow
Discover carefully curated flight deals from Ottawa to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 February 2025.
Mon 24/25:20 p.m.YOW - LHR
1 stop9h 40mAir France
Wed 5/37:35 p.m.LHR - YOW
1 stop24h 35mAir France
Deal found 5/2C$ 854
Thu 20/36:20 p.m.YOW - LHR
1 stop18h 15mVirgin Atlantic
Wed 26/32:45 p.m.LHR - YOW
1 stop29h 25mVirgin Atlantic
Deal found 5/2C$ 880
Mon 24/25:20 p.m.YOW - LHR
2 stops12h 25mMultiple Airlines
Wed 5/311:30 a.m.LHR - YOW
1 stop32h 40mMultiple Airlines
Deal found 5/2C$ 884
Wed 26/32:45 p.m.YOW - LHR
1 stop12h 25mAir Canada
Mon 31/32:05 p.m.LHR - YOW
Nonstop7h 20mAir Canada
Deal found 5/2C$ 948
Thu 20/32:05 p.m.YOW - LHR
1 stop12h 35mUnited Airlines
Wed 26/312:05 p.m.LHR - YOW
2 stops26h 23mUnited Airlines
Deal found 4/2C$ 970
Mon 31/36:55 p.m.YOW - LHR
Nonstop6h 35mLufthansa
Mon 7/42:05 p.m.LHR - YOW
Nonstop7h 20mLufthansa
Deal found 5/2C$ 1,007
Sun 23/36:20 p.m.YOW - LHR
2 stops12h 25mKLM
Sun 30/36:30 a.m.LHR - YOW
2 stops13h 55mKLM
Deal found 6/2C$ 1,017
Thu 6/39:35 p.m.YOW - LHR
2 stops34h 15mWestJet
Sun 16/32:50 p.m.LHR - YOW
2 stops33h 57mWestJet
Deal found 5/2C$ 1,112
Tue 18/22:45 p.m.YOW - LHR
2 stops17h 55mSWISS
Tue 4/38:55 a.m.LHR - YOW
2 stops15h 27mSWISS
Deal found 4/2C$ 1,197
Mon 7/45:55 a.m.YOW - LHR
2 stops19h 30mDelta
Mon 21/48:10 p.m.LHR - YOW
2 stops32h 59mDelta
Deal found 5/2C$ 1,213
Thu 6/311:35 a.m.YOW - LHR
2 stops39h 45mAustrian Airlines
Sun 16/39:05 a.m.LHR - YOW
2 stops44h 32mAustrian Airlines
Deal found 6/2C$ 1,283
Tue 15/42:10 p.m.YOW - LHR
2 stops12h 50mAer Lingus
Wed 30/49:50 a.m.LHR - YOW
2 stops14h 29mAer Lingus
Deal found 5/2C$ 1,475
Direct flights from Ottawa to Heathrow
Explore direct flight options from Ottawa to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 February 2025.
Mon 31/36:55 p.m.YOW - LHR
Nonstop6h 35mLufthansa
Mon 7/42:05 p.m.LHR - YOW
Nonstop7h 20mLufthansa
Deal found 5/2C$ 1,007
Mon 31/36:55 p.m.YOW - LHR
Nonstop6h 35mAir Canada
Mon 7/42:05 p.m.LHR - YOW
Nonstop7h 20mAir Canada
Deal found 6/2C$ 1,019
Last-minute flights from Ottawa to Heathrow
Discover last-minute flight deals from Ottawa to Heathrow. Data last updated 6 February 2025 and is based on user searches.
Fri 14/26:20 a.m.YOW - LHR
1 stop20h 35mUnited Airlines
Fri 21/29:10 a.m.LHR - YOW
1 stop12h 06mUnited Airlines
Deal found 5/2C$ 987
Fri 14/210:30 a.m.YOW - LHR
2 stops15h 40mAir Canada
Fri 21/28:55 a.m.LHR - YOW
2 stops29h 22mAir Canada
Deal found 5/2C$ 1,024
Fri 21/27:05 p.m.YOW - LHR
1 stop11h 45mAir Canada
Sat 22/23:00 p.m.LHR - YOW
1 stop23h 42mAir Canada
Deal found 6/2C$ 967
Fri 21/26:10 p.m.YOW - LHR
2 stops57h 10mAustrian Airlines
Thu 27/22:50 p.m.LHR - YOW
2 stops31h 32mAustrian Airlines
Deal found 6/2C$ 1,183
Sun 23/25:45 p.m.YOW - LHR
1 stop14h 05mWestJet
Wed 5/32:50 p.m.LHR - YOW
1 stop14h 54mWestJet
Deal found 5/2C$ 1,094
Mon 24/25:20 p.m.YOW - LHR
1 stop9h 40mAir France
Wed 5/37:35 p.m.LHR - YOW
1 stop24h 35mAir France
Deal found 5/2C$ 854
Mon 24/25:20 p.m.YOW - LHR
2 stops12h 25mMultiple Airlines
Wed 5/311:30 a.m.LHR - YOW
1 stop32h 40mMultiple Airlines
Deal found 5/2C$ 884
Tue 25/210:30 a.m.YOW - LHR
2 stops16h 55mUnited Airlines
Wed 5/34:00 p.m.LHR - YOW
2 stops23h 28mUnited Airlines
Deal found 5/2C$ 987
Wed 26/25:55 a.m.YOW - LHR
2 stops19h 55mDelta
Fri 4/48:10 p.m.LHR - YOW
2 stops32h 59mDelta
Deal found 5/2C$ 1,220
Sat 15/36:20 p.m.YOW - LHR
2 stops13h 45mKLM
Mon 31/36:30 a.m.LHR - YOW
2 stops13h 35mKLM
Deal found 6/2C$ 1,014
Thu 20/36:10 p.m.YOW - LHR
2 stops19h 40mSWISS
Wed 26/38:55 a.m.LHR - YOW
2 stops16h 42mSWISS
Deal found 6/2C$ 1,167
Mon 31/36:55 p.m.YOW - LHR
Nonstop6h 35mLufthansa
Mon 7/42:05 p.m.LHR - YOW
Nonstop7h 20mLufthansa
Deal found 6/2C$ 1,020
One-way flights from Ottawa to Heathrow
Search for one-way flight options from Ottawa to Heathrow. Find affordable one-way fares based on user searches. Data last updated 6 February 2025.
Tue 4/36:15 a.m.YOW - LHR
1 stop25h 35mWestJet
Deal found 5/2C$ 345
Sun 16/36:55 p.m.YOW - LHR
1 stop37h 55mMultiple Airlines
Deal found 5/2C$ 379
Wed 14/51:55 p.m.YOW - LHR
2 stops14h 10mAer Lingus
Deal found 5/2C$ 897
Mon 28/46:55 p.m.YOW - LHR
Nonstop6h 35mAir Canada
Deal found 5/2C$ 933
Wed 14/59:00 p.m.YOW - LHR
Nonstop6h 35mLufthansa
Deal found 5/2C$ 1,020
Find flights from Ottawa to Heathrow within your budget
Customize your flight search to find flights from Ottawa to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 6 February 2025.
Fly from
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Route
Depart
Return
Price
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Mon 24/2
5:20 p.m.-8:00 a.m.
1 stop9h 40m
London Heathrow
Wed 5/3
7:35 p.m.-3:10 p.m.
1 stop24h 35m
C$ 854
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Thu 20/3
6:20 p.m.-4:35 p.m.
1 stop18h 15m
London Heathrow
Wed 26/3
2:45 p.m.-4:10 p.m.
1 stop29h 25m
C$ 880
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Mon 24/2
5:20 p.m.-10:45 a.m.
2 stops12h 25m
London Heathrow
Wed 5/3
11:30 a.m.-3:10 p.m.
1 stop32h 40m
C$ 884
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Wed 26/3
2:45 p.m.-7:10 a.m.
1 stop12h 25m
London Heathrow
Mon 31/3
2:05 p.m.-4:25 p.m.
Nonstop7h 20m
C$ 948
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Thu 20/3
3:11 p.m.-11:05 a.m.
2 stops15h 54m
London Heathrow
Mon 31/3
8:30 a.m.-9:35 p.m.
1 stop18h 05m
C$ 970
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Thu 1/5
6:55 p.m.-6:30 a.m.
Nonstop6h 35m
London Heathrow
Mon 12/5
2:05 p.m.-4:25 p.m.
Nonstop7h 20m
C$ 1,016
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Sun 23/3
6:20 p.m.-10:45 a.m.
2 stops12h 25m
London Heathrow
Sun 30/3
6:30 a.m.-3:25 p.m.
2 stops13h 55m
C$ 1,017
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Thu 6/3
9:35 p.m.-12:50 p.m.
2 stops34h 15m
London Heathrow
Sun 16/3
2:50 p.m.-8:47 p.m.
2 stops33h 57m
C$ 1,112
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Sun 30/3
2:10 p.m.-5:50 p.m.
2 stops22h 40m
London Heathrow
Tue 8/4
6:40 p.m.-7:19 p.m.
2 stops29h 39m
C$ 1,172
OttawaLondon
YOW - LHR
YOWLHR
Ottawa
Fri 21/2
6:10 p.m.-8:20 a.m.
2 stops57h 10m
London Heathrow
Thu 27/2
2:50 p.m.-5:22 p.m.
2 stops31h 32m
C$ 1,183
Flights are sorted by cheapest round-trip flights first.
Deals found on 6/2
Showing 1-10 of 15 results
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Best time to book a flight from Ottawa to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Ottawa to Heathrow
Get recent, data-driven insights about flights from Ottawa to Heathrow including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Ottawa to London Heathrow Airport?
Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Heathrow. Price data was last updated on 31 January 2025.
The best time to book flights from Ottawa to London Heathrow Airport is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Ottawa to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Ottawa to London Heathrow Airport (average of C$ 560). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from YOW to LHR?
Find hourly flight availability from Ottawa to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 February 2025.
It’s typically best to fly out from Ottawa to London Heathrow Airport in the morning. Doing so could potentially save you 10% on the flight price compared to flying in the afternoon, which is usually more expensive.
What is the cheapest day to fly from Ottawa to London Heathrow Airport?
Use this chart to determine the cheapest time to fly round-trip from Ottawa to Heathrow. Price data was last updated on 16 December 2024.
Travelers seeking maximum savings on their Ottawa to London Heathrow Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Heathrow by month
Plan your trip to Heathrow by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.
Temperature in Heathrow by month
Plan your trip to Heathrow by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 6 February 2025.
See what other customers who have flown with Delta, KLM and Austrian Airlines from Ottawa to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Related info for your journey
Find useful and relevant information for your journey from Ottawa to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Ottawa to London Heathrow?
Most people fly from Ottawa (YOW) if they book a flight from Ottawa to London Heathrow. On average, Ottawa has 0 outbound flights to London Heathrow per day from 4 airlines. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.
What are the cheapest airlines flying from Ottawa to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Ottawa to London Heathrow Airport round-trip from C$ 854. Other airlines that can offer you cheap pricing are Virgin Atlantic, from C$ 880, and Air Canada, from C$ 948. Air France is 27% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Ottawa to London Heathrow Airport one-way?
The cheapest airlines for a one-way flight from Ottawa to London Heathrow Airport are WestJet (C$ 345), Aer Lingus (C$ 897), and Air Canada (C$ 933).
What are the cheapest flights from Ottawa to London Heathrow Airport?
On average you can expect to pay C$ 2,075 for a flight from Ottawa to London Heathrow Airport. The cheapest flight overall is C$ 923 while the most popular route, (Ottawa - London Heathrow) is currently priced at C$ 960.
Can I find deals for business class flights from Ottawa to Heathrow?
Yes. Cheapflights offers flight deals from Ottawa to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ottawa to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Ottawa to London Heathrow Airport (average of C$ 560). Flying from Ottawa to London Heathrow Airport in July is currently the most expensive (average of C$ 874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.